the bay area professor is shinya yamanaka, a native of japan. he and a british researcher won for their discovery that mature specialized cells in the body can be reprogrammed to become any kind of cell. the committee said the winners have shown that specialized cells can turn back the developmental clock under certain circumstances and also said the discoveries will provide new tools for scientists around the world. this morning, a colleaguof the bay area winner explained more about the significance. >> it's a major breakthrough because it removes some ethical issues using human embryonic stem cells and opens a new host of things that we can do and ways to understand human disease using these new stem cells that we couldn't even dream of before. >> the medicine award was the first nobel prize to be announced this year. >>> good gourd! the pumpkin that triumphs all others pumpkins at this year's half moon bay weigh-off. >> that thing is a mess! ! hey, folks, we have clouds off the coastline with showers coming up. a privately- owned rocket tk of